How can I declare global variables then I can access them on the other forms?
And how can I use radio button for choose statement? thanks. .
If you declare a (global) variable in your main form:
Public Class Form1 Friend MyGlobal As Integer End Class
you'll have to qualify variable's name with Form1
Public Class Form2 Dim a As Integer = Form1.MyGlobal End Class
And how can I use radio button for choose statement?
You mean, how to test the value? Use Checked property:
If RadioButton1.Checked Then ' Radio button is "checked" End If